Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy
Aluminum alloys are widely used in aircraft industry where good corrosion resistance, light weight and high strength are the primary requirements. In the present study, attempts have been made to extend the application of mechanical and fatigue properties of AA7025 in laboratory with corrosive envir...
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| Format: | Article |
| Language: | English |
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Unviversity of Technology- Iraq
2022-01-01
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| Series: | Engineering and Technology Journal |
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| Online Access: | https://etj.uotechnology.edu.iq/article_170591_09a5b129503e2417e5b09c7174689f7c.pdf |
| _version_ | 1827367749334073344 |
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| author | Mohammed Alwan Hussain Al-Alkawi Ghada Aziz |
| author_facet | Mohammed Alwan Hussain Al-Alkawi Ghada Aziz |
| author_sort | Mohammed Alwan |
| collection | DOAJ |
| description | Aluminum alloys are widely used in aircraft industry where good corrosion resistance, light weight and high strength are the primary requirements. In the present study, attempts have been made to extend the application of mechanical and fatigue properties of AA7025 in laboratory with corrosive environment of media and combined corrosive at elevated temperature (ET) 150⁰C. The experimental results and analysis of corrosion and corrosion - elevated temperature mechanical and fatigue behavior of the samples showed that the 3.5%NaCl corrosive media and corrosion - elevated temperature (ET) greatly decrease the properties mentioned. The Ultimate Tensile Strength (UTS) and Yield stress YS of AA 7025 reduced by 5.3% and 14.83% respectively due to combine corrosion and elevated temperature but these properties reduce by 8.7% and 19.35% respectively due to combined actions corrosion (ET). The Brinell hardness also reduced by 4.2% and 11.26% due to corrosion only and corrosion and (ET). Ductility was increased by 10.5% and 16.25% for corrosion and corrosion (ET). The environment and elevated temperature – corrosion have significant effect on reduction the fatigue life and strength of AA 7025. It’s clear that the combine corrosion and (ET) combination reduce safely of the mechanical properties compared with the corrosion only and room temperature conditions. |
| first_indexed | 2024-03-08T09:17:38Z |
| format | Article |
| id | doaj.art-e73c653d48cd4a60b14758636deb49e2 |
| institution | Directory Open Access Journal |
| issn | 1681-6900 2412-0758 |
| language | English |
| last_indexed | 2024-03-08T09:17:38Z |
| publishDate | 2022-01-01 |
| publisher | Unviversity of Technology- Iraq |
| record_format | Article |
| series | Engineering and Technology Journal |
| spelling | doaj.art-e73c653d48cd4a60b14758636deb49e22024-01-31T14:27:40ZengUnviversity of Technology- IraqEngineering and Technology Journal1681-69002412-07582022-01-014011710.30684/etj.v40i1.1587170591Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum AlloyMohammed Alwan0Hussain Al-Alkawi1Ghada Aziz2Electromechanical Engineering Dept., University of Technology-Iraq, Alsina’a Street, P.O. Box 10066, Baghdad, Iraq.Department of Aeronautical Engineering Techniques, Bilad Alrafidain University College, Diyala, Iraq.Electromechanical Engineering Dept., University of Technology-Iraq, Alsina’a Street, P.O. Box 10066, Baghdad, Iraq.Aluminum alloys are widely used in aircraft industry where good corrosion resistance, light weight and high strength are the primary requirements. In the present study, attempts have been made to extend the application of mechanical and fatigue properties of AA7025 in laboratory with corrosive environment of media and combined corrosive at elevated temperature (ET) 150⁰C. The experimental results and analysis of corrosion and corrosion - elevated temperature mechanical and fatigue behavior of the samples showed that the 3.5%NaCl corrosive media and corrosion - elevated temperature (ET) greatly decrease the properties mentioned. The Ultimate Tensile Strength (UTS) and Yield stress YS of AA 7025 reduced by 5.3% and 14.83% respectively due to combine corrosion and elevated temperature but these properties reduce by 8.7% and 19.35% respectively due to combined actions corrosion (ET). The Brinell hardness also reduced by 4.2% and 11.26% due to corrosion only and corrosion and (ET). Ductility was increased by 10.5% and 16.25% for corrosion and corrosion (ET). The environment and elevated temperature – corrosion have significant effect on reduction the fatigue life and strength of AA 7025. It’s clear that the combine corrosion and (ET) combination reduce safely of the mechanical properties compared with the corrosion only and room temperature conditions.https://etj.uotechnology.edu.iq/article_170591_09a5b129503e2417e5b09c7174689f7c.pdfnacl corrosionelevated temperature – corrosionmechanical propertiesfatigue lifestrengthaa 7025 |
| spellingShingle | Mohammed Alwan Hussain Al-Alkawi Ghada Aziz Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy Engineering and Technology Journal nacl corrosion elevated temperature – corrosion mechanical properties fatigue life strength aa 7025 |
| title | Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy |
| title_full | Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy |
| title_fullStr | Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy |
| title_full_unstemmed | Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy |
| title_short | Elevated Temperature Corrosion of Mechanical Properties and Fatigue Life of 7025 Aluminum Alloy |
| title_sort | elevated temperature corrosion of mechanical properties and fatigue life of 7025 aluminum alloy |
| topic | nacl corrosion elevated temperature – corrosion mechanical properties fatigue life strength aa 7025 |
| url | https://etj.uotechnology.edu.iq/article_170591_09a5b129503e2417e5b09c7174689f7c.pdf |
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